Stud for the erection of circular structures.



W. BRINDLEY.

STUD FOR -THEERECTION 0F CIRCULAR STRUCTURES.

Patented May 1, 1917.

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STUD FOR THE ERECTION OF CIRCULAR STRUCTURES.

Specification of Letters Patent.

Patented May 1, 11917.

Application filed July 8, 1914.. Serial No. 849,749.

To all whom it may concern:

Be it known that I, lVILLIS BRINDLEY, a citizen of the United States, residing at Seattle, in King county and State of WVashington, have invented a new and useful Improvement in Studs for the Erection of Circular Structures, of which the following is a specification.

My invention consists of studs, the general shape of which is shown by A in Figures 1 and 2 of the accompanying drawings and made of any suitable material such as wood or metal. This member is cut or shap'ed from a piece of rectangular cross section in such manner as to have rabbets out in its four corners running along its length. These rabbets are for the reception of the connecting members, B in Figs. 1 and 2. These members are to be of wood, sheet metal, wall board or any other suitable material and secured at their ends to the members A by nails, screws, bolts or rivets as desired. The rabbets in the members A are cut at such an angle as is necessary to allow the members B to form the chords of a circle whose circumference passes through the center of the studs A. The length of such chords and the required angle being determined by the number of sides and the diameter of the structure to be erected. As is clearly shown, the rabbets on the inside of the studs A are of greater depth than the rabbets upon the outer sides of the studs. By this arrangement, it is possible to utilize staves B of a uniform length spaced as shown in Fig. 1 to provide concentric inner and outer Walls, with the same number of staves being utilized in each wall and the aggregate lengths of the staves of each wall being identical. The present invention aims to provide a silo having horizontal stave members, and one that is simple in construction and very inexpensive to manufacture. By forming the rabbets upon the inner and outer sides of the staves of' unequal lengths, it is possible to use What might be termed scraps and ends of waste material for the stave members, thereby tending to decrease the cost of manufacture and selling price and yet retain all of the requisite advantages of a perfectly constructed silo. Another obvious advantage of the present construction is the relative angles of the engaging faces of the stave ends and the rabbets. It will be observed that the ends of the staves are cut at true right angles, and the rabbets are cut at such angles that the side faces and ends of the staves when seated in the rabbets engage over their entire adjacent surfaces. This construction also cheapens the cost of manufacture and greatly enhances the value of the silo.

In practice, silos of this character are always shipped in knocked-down form and it is the usual practice of the purchaser to assemble the same himself. With unskilled labor it would be quite difficult to assemble a silo of this type if one had to build the same of staves of dilferent lengths. But the staves B being of a uniform length, the sam may be easily and quickly assembled in the rabbets of the studs A, and as the approximate difference in the length of the stave members, when compared to the difference of the depths of the rabbets, would amount to less than an inch it will be at once appreciated that the idea of forming the staves of an equal length, both for the inner and outer walls of the silos will greatly enhance the practicability thereof and permit a quick and easy assembling of the different parts.

To erect the structure, the required number of studs A and the required number of connecting members B are assembled by securing the members B at their ends to the proper recesses in the adjacent studs forming two walls of sheathing outside and inside, with an air space between of dead air which Will better preserve an even temperature on the inside of the structure. My invention will be useful as an improvement in the construction of silos for the storage of ensilagle, in that the dead air space will prevent t e ensilage from freezing in severe weather. Another advantage lies in the fact that the sheathing B in case of wood being used, being of equal length and width and laid with the grain running horizontally around the structure instead of vertically, as in the case of old style silos and water tanks, it will be obvious to any one skilled in the art that the fibers, hitherto subjected to a stress perpendicular to the grain of the wood, now being in tension, much greater strength is gained and hence a greater ability to withstand the outward thrust and bulging tendency of the contents.

My invention will also cheapen the cost of erecting any circular structure because the members may be cut to size in a mill and shipped in a knock down form, thereby doing away with the additional cost of cutting and calculating quantities at the place of erecting.

I claim:

1. In a silo, a plurality of vertically arranged studs of substantially rectangular configuration in cross section adapted to be arranged in spaced circular relation, each of said studs being rabbeted at its opposite corners upon the inner and outer sides thereof, the rabbets upon the inner sides of the studs being of greater depths than the rabbets upon the outer sides, and a plurality of horizontal staves of equal lengths having their ends received and retained in said rabbets upon the inner and outer sides of the studs to present two concentric Walls, the aggregate lengths of the inner and outer staves being identical.

2. A double Walled silo formed of horizontal staves including vertical studs of substantially rectangular cross sections having the four corners thereof rabbeted With the rab'bets upon the inner sides being of greater Width than the rabbets upon the outer sides,

and a plurality of horizontal staves of equal WILLIS BRINDLZEY.

l/Vitnesses:

T. W. PATTERSON, H. B. BRYCE.

Copies 'of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

